/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.iiit.quarkus.sample.gof23.behavioralpattern.iterator;

import javax.enterprise.context.ApplicationScoped;

@ApplicationScoped
public class ImplementIterator extends Iterator {

	private EmployeeCollection employeeCollection;
	private int currentIndex;
	
	public ImplementIterator (){}
	
	public ImplementIterator (EmployeeCollection collection){
		initizeIterator(collection);
	}	

	private void initizeIterator(EmployeeCollection collection) {
		employeeCollection = collection;
		currentIndex = collection.getEmployeeMax() - 1;
	}
	
	public void setEmployeeCollection(EmployeeCollection collection) {
		employeeCollection = collection;
		currentIndex = collection.getEmployeeMax() - 1;
	}

	public Employee next() {
		if (currentIndex == -1)	return null;
		return employeeCollection.getEmployee(currentIndex--);
	}

}
